Table

2-3 Hardware Path Field Descriptions (continued)

 

Field

Value

Fibre Channel Topology of HBA

 

Fabric Topologies

Private Loop

 

 

Target

Depends on the Fibre

For LUNs with Peripheral Device

With Peripheral Device Addressing,

 

Channel topology and

Addressing, the value of this field is the

the value of this field is the lower

 

the LUN addressing

lower 4-bits of the third byte of the

4-bits of the Loop ID of the target

 

method used.

N_Port ID of the target device. This field

device.

 

 

usually corresponds to the Arbitrated

 

 

 

Loop Physical Address (AL_PA) of the

 

 

 

target device.

 

 

For LUNs with Logical Unit Addressing, the value is the Target field of the

 

LUN. For LUNs with Volume Set Addressing (Flat Space Addressing), the value

 

 

is bits 3 - 6 of the LUN.

LUN

Depends only on the LUN addressing method used.

LUN Addressing Method

Value of LUN field in Fibre Channel hardwarePath.

Peripheral Device Addressing

The Target or LUN field of the Logical Unit Number.

Logical Unit Addressing

The LUN field of the Logical Unit Number.

Volume Set Addressing (Flat Space

Bits 0 - 2 of the Logical Unit Number.

Addressing)

 

For more information about the fields in the Logical Unit Number, please see the SCSI Architecture Model - 3 (SAM-3) standards document.

Interpreting Hardware Paths 19

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